# -*- coding:utf-8 -*-

"""
=============================
this is a feibot product,
all rights reserved.
www.feibot.com
@author: Gu Tianyuan
@email: g@feibot.com
@time: 2023/4/11:12:20
@product: PyCharm
=============================
"""

d = {}
import time

max = 49999
for i in range(0, max):
    epc = "%08d" % i
    timeStr = "%15d" % i
    d[epc] = timeStr

start = time.perf_counter()
i = 0
# for i in range(0,max):
if '00049999' in d:
    i += 1
    pass
a = len(d)

end = time.perf_counter()
print('Running time: %s Seconds'%(end-start))
print(i)
